Discussion Also known as common lamb's quarters, white goosefoot, pigweed. Seven varieties have been proposed. Although this plant is usually considered weedy or invasive in North America and Europe, it is cultivated for food and forage in Asia and Africa.

Many of the introduced members of this family are weeds with non-showy flowers that invade lawns and gardens. Many more species of this genus are found in North America, among them Mexican Tea (C. ambrosioides), an aromatic plant that has oblong or lanceolate leaves with wavy-toothed margins; and Jerusalem-oak (C. botrys), also aromatic but with has oak-like leaves.